Windows 10 S breathes new life into UWP — and paves the way for 'Surface phone'

Two years ago, Microsoft launched the "Project Centennial" app bridge so developers could bring Win32 apps to the Universal Windows Platform (UWP). Then nothing happened.
The UWP is Microsoft's unified, core-based development platform that also provides a cohesive app experience for users across the breadth of Windows-based devices. UWP apps have the benefit of being more secure than traditional programs, in part because they are distributed exclusively through the Windows Store.